/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Returns whether node input exists.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Audio|MetaSound|Builder") bool ContainsNodeInput ( const [FMetaSoundBuilderNodeInputHandle](API\Plugins\MetasoundEngine\FMetaSoundBuilderNodeInputHandle) & Input ) const